baber/WOPTO huggingface dataset:
Patent GB-980618-A (GB)
Title: Toaster
IPC: A47J37/08
Filed: 1962-10-29
Abstract: 980,618. Toasting machines. H. MAIER, [trading as JOHANNES SCHLENKERMAIER ELEKTROTECHNISCHE FABRIK]. Oct. 29, 1962 [Oct. 27, 1961], No. 40729/62. Heading A4D. A toaster, wherein bread slices 20 are moved by motor-driven means between at least one pair of heating elements 22, comprises a chassis 10, and walls 11 and removable top 14 and bottom 15 covers and includes frame-like holders 19 for bread slices mounted on a removable carriage 18 slidably supported on rods 17 and between guides 16 secured to the chassis 10. A U- section rail 28 is slidably supported by brackets 27 secured to the underside of the chassis 10 and is reciprocated by means of a motor 25 and gear unit 26 fixed by pillars 35 to the chassis 10, the drive shaft 36 from the gear unit 26 carrying on eccentric 37 engaging a roller 38 which is freely rotatable on a rod 39 secured to the rail 28 and a tension spring 40 extending between a pillar 35 and the rail 28 to urge the roller 38 into engagement with the eccentric 37. The rail 28 is provided with a pawl 30 pivotally carried on a pin 31 slidably mounted in lateral slots 29 in the rail 28 and urged by a leaf-spring 34 into engagement with the teeth of a rack 23 secured to the bottom of the carriage 18. On reciprocating the rail 28 the carriage 18 is moved intermittently through the toaster by successive engagement of the pawl 30 with the rack 23 against the action of leaf spring 34. An adjustable cam plate 41 is provided for controlling the extent of each step-movement of the carriage 18. The action of the pawl 30 may be reversed to reverse the movement of the carriage 18.
Patent GB-963890-A (GB)
Title: Improvements in or relating to electric oscillator circuits
Inventor: BOZIC SVETOZAR MILE
IPC: H03L5/00
Filed: 1960-12-01
Abstract: 963, 890. Automatic voltage control. GENERAL ELECTRIC CO. Ltd. Dec. 1, 1961 [Dec. 1, 1960], No. 41382/60. Heading G3R. A crystal controlled oscillator 1 is connected to a load through a tuned amplifier 2, a further amplifier 3 and a matching transformer 41, which is shown with a centre -tapped secondary to supply a phase-split load. The output is also coupled by a transformer 45 to the heater 23 of an indirectly heated thermistor 21. The negative temperature coefficient element of the thermistor shunts the oscillatory feed-back path 17 of the oscillator so that the amplitude of oscillation tends to remain constant. The ratios of transformers 41, 45 are chosen so that the resistance of the heater 23 matches the resistance of the external load.
Patent GB-1356351-A (GB)
Title: Circuit board socket
IPC: H01R12/58
Filed: 1971-09-06
Abstract: 1356351 Circuit board surface connectors BERG ELECTRONICS Inc 6 Sept 1971 [2 Feb 1971] 41463/71 Heading H2E A socket for soldering into a bore of a printed circuit board comprises a hollow square crosssectioned body 12 and a roughly M-shaped contact providing a pair of spring arms 26 within body 12 for resilient engagement with a pin contact 52 and a further pair of spring arms 30 for retaining body 12 in the bore prior to soldering. Dimples 36 serve to retain the contact within body 12. The socket is soldered in the bore by dipping, the interior of curled portions 32 of the contact being coated with a layer 42 of chromium or other solder-resistant material to prevent solder reaching the interior of the socket. As shown the walls of the bore have metal plating 47, but they may be unplated, arms 30 providing a path for solder to interconnect printed conductors on opposite sides of the board around the edge of the bore. The spring contact may be beryllium copper and arms 36 may be formed as grooves for reception of pin 52 (Fig. 5, not shown).
Patent GB-1517058-A (GB)
Title: Gas discharge display apparatus
IPC: H01J17/49
Filed: 1976-10-06
Abstract: 1517058 Gas discharge display tubes NCR CORP 6 Oct 1976 [8 Oct 1975] 41467/76 Addition to 1381075 Heading H1D [Also in Division G5]  In a layer gas discharge display tube an envelope containing ionizable gas has on its inner faces insulated electrodes alternating along the two faces, and control means to establish a charge on the insulation near a selected electrode and then to apply potentials to cause a discharge to appear between adjacent electrodes over a group of at least three including that selected. The envelope contains 16 pure or mixed rare gases, H 2 , N 2  preferably including Ne. Each face 10, 12 carries glass 11 insulated interdigitated preferably transparent electrodes A, C or B, D alternately fed from fuses 18, 20 or 22, 24 along each edge of the face, and with the gaps between electrodes wider than an electrode to allow the electrodes on the opposite face to be opposite the gaps. In place of a D electrode before A1 is an un-insulated IN electrode, and beyond the Last D electrode is an un-insulated OFF electrode grounded via resistor 29. The IN electrode, normally grounded may be given positive 200V pulses, and the A-D buses, normally at + 140V may be grounded by a pulse. Keep-alive insulated electrodes outside the field may supply ions for ignition. Bars of elements as A1-D2 or segments as A3-C3 may be made to appear continuously lit by rapid traverse of a discharge along the length. Tubes may be stacked in parallel to form a matrix for display of characters or geometric figures.
Patent GB-1161508-A (GB)
Title: Improvements in Variable Ratio Transmission Systems
IPC: F16H47/04
Filed: 1966-09-19
Abstract: 1,161,508. Hydro-mechanical variable speed gear. ROBERT BOSCH G.m.b.H. 19 Sept., 1966 [17 Sept., 1965], No. 41657/66. Heading F2D. In a hydromechanical variable speed gear wherein a sun-ring planet train 2 has one element fast with an input shaft 6, a second element geared through a mechanical gear train to an output shaft 37 and a third element connected to the output shaft through a swash-plate pump 3 and motor 4, the pump displacement is maintained constant between a lower and a higher transmission ratio whilst the motor displacement is varied from a maximum through zero to a maximum in the opposite direction so that the pump shaft 11 rotates at the same speed but in the opposite direction at the higher and lower transmission ratios. During starting the pump displacement is increased from zero to the value at which it is maintained constant. The pump and motor displacements are varied by servomotors 20, 36. The planet gear 2 is arranged so that the speed ratio U between the input shaft 6 and pump shaft 11 when the output shaft is stationary is given by where i 1  and i 2  are the lower and higher transmission ratios and K is the ratio of the mechanical gear train. As shown the input shaft 6 is fast with a ring gear 7, the pump shaft 11 is fast with a sun-gear 8 and a planet carrier 10 is connected to the output shaft 37 through gears 38, 39, a hollow layshaft 5 and gears 40, 41. A power take-off shaft 42 may be clutched at 46 to the layshaft 5 or to a shaft 43 driven from the input shaft 6. The mechanical gear ratio between the planet carrier 10 and output shaft 37 may, as shown, be 1: 1 or may be a reduction ratio. In Fig. 2 (not shown), a clutch (50) between the sun and ring gears locks the planet train for an all mechanical drive. In Fig. 4 (not shown), the motor shaft (37) is geared to the layshaft (5) which is geared to a separate output shaft (57) coaxial with the motor shaft (37). In Fig. 5 (not shown), the sun-gear is fast with the input shaft and the ring gear is fast with the pump shaft. In Fig. 6 (not shown), the input shaft (68) and planet gear (66) are coaxial with the layshaft (5) which forms the output shaft and the pump and motor are respectively geared to the sun-gear (71) and layshaft (5). Fig. 2 (not shown), is a graph of pump speed, output speed, pump power and pump displacement against transmission ratio.
Patent GB-1159857-A (GB)
Title: Camera Diaphragm Automatic Control Systems
IPC: G03B7/085
Filed: 1967-09-13
Abstract: 1,159,857. Photo-electric camera control. SOC. D'OPTIQUE PRECISION ELECTRONIQUE ET MECANIQUE. Sept. 13, 1967 [Sept. 20, 1966] No.41801/67. Heading G1. [Also in Division G3] In an automatic camera diaphragm control system a photo-resistor fed with a constant current receives light through the diaphragm and controls the diaphragm opening to maintain its illumination constant; the value of the constant current is adjustable according to film speed. In Fig. 2 a photo-resistor 9 is fed with constant current from transistor 13. One of transistors 21 and 22 conducts depending upon the direction of the voltage excursion across photo-resistor 9 from a nominal value set by resistor 9 and operates motor 11 to adjust the diaphragm opening and return the photo-resistor voltage back to the nominal value. Transistor 13 may be replaced by a field effect transistor, Fig. 3 (not shown), when the stabilizing thermistor 15 becomes unnecessary.
Patent GB-1273243-A (GB)
Title: 2-azetidinones
Inventor: SHEEHAN JOHN CLARK
IPC: C07D205/10
Filed: 1969-08-21
Abstract: 1,273,243. Azetidinones and azetinones. BRISTOL-MYERS CO. 21 Aug., 1969, No. 41819/69. Heading C2C. Novel compounds of Formulµ II, III, IV and Va wherein X is a blocked amino group as used in peptide synthesis, are prepared by one of the following process reaction schemes Processess 1 and 2 result in a protected amino-mercaptoketone II which may be cleaved to give the free amine III. Processess 3, 4, 5 and 6 result in the protected - amino unsaturated ketone IV which may be converted into II by treatment with H 2 S. Compounds of Formula Va are by-products of process 1 and may be cleaved to give II.
Patent GB-1099910-A (GB)
Title: Installation for cleaning chassis of road vehicles
IPC: B60S3/04
Filed: 1965-10-02
Abstract: 1,099,910. Installation for cleaning road vehicle chassis. DAWSON BROS. Ltd. Oct. 3, 1966 [Oct. 2, 1965], No. 41901/65. Heading B7J. An installation for cleaning the chassis of buses &c, stationary upon runways 1, comprises a pit in which a spray carriage 4 is longitudinally movably supported by its wheels 3 on rails 2 and is secured to two endless chains 5 driven by an electric motor 6, two rotatable spray arms 7, 8 on the carriage 4 respectively supplied with cleaning emulsion and water, and manual means, or automatic means including timer and limit switches for controlling the movement of the carriage 4, for causing the emulsion only to be sprayed first during one traverse of the carriage, and water only to be sprayed during subsequent traverses, and for controlling the duration of spraying and the interval between the spraying of emulsion and water. The spray arms 7, 8 are rotated by chain wheels 16 engaging a stationary chain 17; emulsion is supplied by an electrically driven pump to a reeled or helically coiled resilient plastics hose 18 coupled to the spray arm 7, and filtered water is supplied by an electrically driven pump 30 to three helically coiled resilient plastics hoses 20 coupled at 21 to the spray arm 8, the hoses 18, 20 being suspended at longitudinal intervals by hangers 22 and runners 23 from a rail 24. Valved hand nozzles 29, 35 are supplied with emulsion and water via extensions 27, 33 and helically coiled plastics hoses 28, 34.
Patent GB-1137630-A (GB)
Title: Improvements in axial flow gas turbines
Inventor: BOBO MELVIN
IPC: F01D5/08
Filed: 1966-09-20
Abstract: 1,137,630. Gas turbine rotor cooling. GENERAL ELECTRIC CO. Sept. 20, 1966, No. 41924/66. Headings F1G and F1T. The bladed turbine rotor discs 19, 22 in a gas turbine engine are connected by a cylindrical heat shielding member 34 having integral annular sealing plates 40, 45 attached to the respective discs by bolts (41, 46), Figs. 2 to 4 (not shown), passing through holes 58, 52 in the plates. An integral disc 33 stiffens the shield 34. Cooling air is supplied from the engine compressor to the chamber 60 defined by the shield, some of the air then flowing through those holes 58 unoccupied by bolts to an annular channel 55 in plate 40 and thence to passages 57 in the blades 18. The remainder of the air flows in similar manner to passages 54 in the blades 21. The annular channel in plate 45 is bounded on its radially outer side by an annular sealing surface 45' offset from the remainder of the plate to form an axial gap 50 between the plate and the blade roots 21'. The gap 50 and the flexibility of the plate 45 enables axial expansion of the shield 34 to be accommodated. Sealing ribs 66 on the shield co-operate with a honeycomb seal 67 on the stator blades 20. The main driving connection between the discs 19, 22 is through a torque ring 25 and tie bolts (28).
Patent GB-1123573-A (GB)
Title: The separation of sodium sulphate and ammonium sulphate from aqueous solutions of a mixture of them
IPC: C01C1/24
Filed: 1965-10-04
Abstract: Na2SO4 and (NH4)2SO4 are separated from an aqueous solution containing them by crystallizing the solution at a temperature greater than 60 DEG  C. to give a crystal mixture in which the crystals of each salt have differing size and density properties, separating the crystals to give one fraction consisting mainly of Na2SO4 crystals and another consisting mainly of (NH4)2SO4 crystals, washing each fraction separately at a temperature greater than 60 DEG C. to dissolve away the sulphate in the least quantity and leave the other substantially pure. The crystallization may be effected by concentration by evaporation, which may be in a single or multiple stages, e.g. at temperatures between 125 DEG  and 65 DEG  C.  The washing may be with water or an unsaturated solution of the sulphates, e.g. the initial aqueous solution. The washing may be recycled to the initial aqueous solution.  The crystals may be separated by decantation, flotation, dry or wet screening or by differential entrainment in a gas flow.  All wet separation steps must be effected at a temperature above 60 DEG  C.  The larger crystals of (NH4)2SO4 may be washed on the screen. When screening is used to separate the crystals the crystallization of Na2SO4 may be controlled by finely ground seed crystals, e.g. 150-200 mesh.  The washed crystals may be centrifuged, filtered or dried.  The Na2SO4 mainly has a size <0.3 mm and a density of 2.7gm/cc.  The (NH4)2SO4 mainly has a size from 0.5 to 1.0 mm and a density of 1.7-1.8 gm/cc.
Patent GB-1365363-A (GB)
Title: Acrylate polymers
IPC: C08F220/12
Filed: 1971-09-10
Abstract: 1365363 Acrylate polymers B F GOODRICH CO 10 Sept 1971 [14 Sept 1970] 42309/71 Headings C3P and C3G An acrylate polymer is prepared by emulsion polymerization of an acrylic ester having the formula wherein R<SP>1</SP> is hydrogen or an alkyl radical containing from 1 to 4 carbon atoms, and R<SP>2</SP> is a hydrocarbon radical containing from 1 to 12 carbon atoms and which is present in such an amount that the resulting acrylate polymer contains 35 to 99À95% by weight of bound acrylic ester, there being added to the polymerization, at any stage, a vinyl or vinylidene halide monomer having the formula wherein X is chlorine or fluorine and Y is hydrogen or a halogen the same as defined for X in such an amount that the resulting acrylate polymer contains 0À05 to 4À9% by weight of bound vinyl or vinylidene halide. In the examples n-butyl acrylate, acrylic acid, N- methylol acrylamide, vinyl chloride, vinylidene chloride, ethyl acrylate, acrylonitrile, styrene, and glycidyl methacrylate are copolymerized in the presence of water, tetrasodium pyrophosphate, sodium lauryl sulphate, potassium persulphate, sodium metabisulphite, ammonium carbonate and ammonium persulphate. In Example VI a graft copolymer is formed by adding vinyl chloride after the other monomers. In Example VII the polymer latex is coated on flat paper and glass plate, dried and cured.
Patent GB-1160456-A (GB)
Title: Improvements in or relating to Amino Propanols and the Manufacture thereof
IPC: C07D499/00
Filed: 1967-09-19
Abstract: 1,160,456. Alkanolamine derivatives. UPJOHN CO. 19 Sept., 1967 [21 Oct., 1966], No. 42549/67. Heading C2C. Compounds of the general formula (X = H, halogen or C 1-4  alkyl, the two X values being the same or different) and their salts are prepared by reacting a compound of the formula with a trimethoxybenzaldehyde and reducing the resulting compound of the formula optionally followed by salt formation. The compounds of the invention are stimulants, antidepressants, tranquilizers and anticonvulsants, and may be administered in the form of pharmaceutical preparations containing them together with a carrier.
Patent GB-1281358-A (GB)
Title: Improvements in and relating to electric discharge lamp apparatus
Inventor: KOYAMA SHIGEO
IPC: H05B41/04
Filed: 1969-08-27
Abstract: 1281358 Supply circuits for discharge lamps MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 27 Aug 1969 [27 Aug 1968 4 Nov 1968] 42575/69 Heading H2H A circuit for operating a discharge lamp includes a ballast device, a pulse transformer, and a reverse blocking diode thyristor connected across the lamp electrodes. In the circuit of Fig. 1, the lamp 12 has heated electrodes 13, 14 and is connected in series with the ballast 11 across a mains supply 8. The ballast and supply are also connected in series through the electrodes with both windings of a pulse transformer 15 and a reverse blocking diode thyristor 18. In operation, the supply voltage is sufficient to break down the thyristor 18 each cycle to permit a pulse to pass through the heating electrodes. When the electrodes are sufficiently heated, the pulse is able to strike the lamp, after which the lamp running voltage is insufficient to cause the thyristor 18 to break down again. Because the thyristor 18 is of the reverse blocking type, the ballast 11 may saturate to allow increased electrode heating current. In further embodiments, Figs. 3 and 5 (not shown), a diode is connected in series with the thyristor 18. In the embodiment of Fig. 5, saturation of the ballast 11 is brought about by using an additional winding.
Patent GB-1513469-A (GB)
Title: Apparatus for measuring the temperature of a stream of hot gas flowing within a closed pipe
IPC: G01K1/14
Filed: 1975-10-17
Abstract: 1513469 Mounting temperature responsive elements JOHN ZINK CO 17 Oct 1975 42723/75 Heading G1D A temperature sensor, for use in a piped hot gas stream, comprises a metal conduit 16 having openings through which gas can enter and leave the conduit, a temperature sensing element 26 positioned within the conduit, and at least one open ended metal tube 34 positioned coaxially within the conduit and surrounding the element. The conduit 16 is secured to a mounting 20, and the element 26 within the conduit, by means of a plug 19. The inboard end of the conduit is closed by a disc 30 adjacent which is an opening 32 directed against the direction 42 of gas flow in the pipe 12; openings 38, 40 face the direction 42. A tube 34 is held by radial spacers 36. Gas enters opening 32 flows between the conduit, tube and element and leaves via the openings 38, 40, shown by arrows 44-50. The velocity of flow through the conduit can be adjusted using an ejector or pump, or varying the size and position of the openings. In another embodiment, Fig. 6 (not shown), the disc 30 and opening 32 are not present, the gas entering the open ends of the conduit and the tube which face the direction of flow in the pipe.
Patent GB-939167-A (GB)
Title: Improvements in track circuits for railways
Inventor: METHUEN ROBERT ALEXANDER HOLT
IPC: B61L1/18
Filed: 1960-12-12
Abstract: 939,167. Track circuits. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Nov. 15, 1961 [Dec. 12, 1960], No. 42760/60. Class 105. A track circuit comprises an insulated section of track 10, a track relay TR with a front contact TR1 in series with the energizing coil of a slow release relay ZR, a front contact ZR1 of the slow release relay in shunt with the energizing coil of the track relay whereby, when the track section is unoccupied, both relays pick up and drop away cyclically and a code following relay CPR which remains picked up during the alternations of the slow release relay and drops away to indicate track occupation when the alternations cease. During pick-up of relay ZR, relay CPR is energized by the discharge of condenser C2 via front contact ZR5 and condenser C1 is charged via front contact ZR2 and during release of relay ZR, relay CPR is energized by the discharge of condenser C1 via back contact ZR3 and condenser C2 is charged via back contact ZR4. The track supply may be D.C. as shown, or A.C. may be used in which case relay TR is energized via a rectifier bridge.
Patent GB-954402-A (GB)
Title: Improvements in or relating to microphones
IPC: G10K15/10
Filed: 1961-11-30
Abstract: 954,402. Microphones; reverberation devices. W. L. REHDE. Nov. 30, 1961 [Nov. 30, 1960; Aug. 3, 1961], No. 42876/61. Headings H4J and H4R. A reverberation device comprises one or more springs 3<SP>1</SP> to 3<SP>4</SP> and 4<SP>1</SP> to 4<SP>5</SP>, Figs. 12, 12a, the or each spring being anchored at its ends, and a linkage 7, 8, 9 connecting the or each spring at a point intermediate the ends to the soundactuated vibratory member 2<SP>1</SP> (diaphragm) of an electrodynamic microphone 2 and to a further sound-actuated-vibratory member 11 so that the microphone 2, in addition to receiving vibrations directly, receives vibrations indirectly by transmission from member 11 to the spring or springs and from the spring or springs to member 2<SP>1</SP>. The spindle 13 of a potentiometer 13<SP>1</SP> is connected to linkage 7, 8, 9 by wire 14 whereby the reverberation effect may be controlled by adjustment of spindle 13. The device is contained in a cabinet provided with cloth-covered apertures (Figs. 10, 10a, 11, 11a, not shown). The springs are of helical type. In a second device, Figs. 13, 14, four helical springs 18, 18<SP>1</SP>, 19, 191 are provided, springs 18, 18<SP>1</SP> being in front of a support-plate 1 carrying a microphone 2 while springs 19, 19<SP>1</SP> are behind the support.
Patent GB-1119857-A (GB)
Title: Apparatus for separating liquid particles from liquid particle-laden gas
Inventor: BEACH GERALD HALL
IPC: B01D45/16
Filed: 1965-10-11
Abstract: 1,119,857. Separating liquid particles from gases; condenser systems. DRESSER INDUSTRIES Inc. 11 Oct., 1965, No. 43132/65. Headings B1B and BIT. [Also in Divisions F1 and F4] Entrained liquid particles are removed from a gas stream as it passes between an array of vanes 49 having hollow interiors to which liquid is swept through openings 65 in the concave upper walls 50 of the vanes, the openings 65 being shielded by "drip strips" inside the vanes and downstream of the openings. Vanes 49 comprise upper and lower curved walls 50, 52 and leading impingement plates 54. Openings 65 are elongated lengthwise of the vanes, in two staggered rows (Fig. 7, not shown), and a continuous opening 63 is formed between wall 50 and upturned edge 64 of wall 52 at the downstream end of the vane. Walls 50, 52 extend through openings (68) in supporting end walls (38, 39), whereby liquid drains from the vane interiors, and T- shaped members 76 form gutters opening into openings 63 at the ends of various adjacent walls (38, 39) to drain off liquid from walls (38, 39) which has been captured by and run along lips 58 of vane impingement plates 54. The vane assembly is mounted in an extension of a frame which supports tubes (31) of a water cooled condenser (Figs. 1-3, not shown). Vane-condenser combinations are slidable on rails (34) into a housing (11) on which an air compressor (10) is mounted, on removing a cover 17. The housing is divided so that vane-condenser combinations are located between successive stages of the compressor, for cooling and drying the air being compressed. Plates 54 and the vanes generally are inclined at 30 degrees to opposite sides of the incoming gas stream. The vanes slope longitudinally at 5 degrees to horizontal and each subtends an angle of 90 degrees.